How to add a coin sytem to my game?

Questions & Answers
1

Hello everyone, I’m trying to make a coin system to my game but I’m facing these two problems: 1) The text doesn’t display anything in the game screen, but i can see it when i’m in build mode 2) It doesn’t show anything until i pickup a coin, and when i do, it only says 1 no matter how many coins i pick up. My coins are all tagged with cointag I’ve double checked, and they do get destroyed, but it doesn’t make the int coin go up. I also added using UnityEngine.UI. I’d appreciate if someone could answer my question. Thanks

public class SnowmanController : MonoBehaviour {
// Update is called once per frame
public int coin;
public Text coinText;

void Update ()
{
	coin = 0;

	if (Input.GetKey (KeyCode.RightArrow)) {
		transform.position += new Vector3 (0.1f, 0, 0);
	} else if (Input.GetKey (KeyCode.LeftArrow)) {
		transform.position -= new Vector3 (0.1f, 0, 0);
	} if (Input.GetKey (KeyCode.UpArrow) | Input.GetKey (KeyCode.Space)) {
		transform.position += new Vector3 (0, 0.1f, 0);
	} else if (Input.GetKey (KeyCode.DownArrow)) {
		transform.position -= new Vector3 (0, 0.1f, 0);
	} else if (Input.GetKey (KeyCode.R)) {
		SceneManager.LoadScene ("Level1");
	}

}
void OnCollisionEnter2D(Collision2D other){
	if (other.gameObject.tag == "cointag") {
		Destroy (other.gameObject);
		coin = coin + 1;
		coinText.text = "Coin: " + coin.ToString ();
	} else if (other.gameObject.tag == "treetag") {
		SceneManager.LoadScene ("Level 2");
	}
}

}

2

Move the “Coin” variable out of the “update function”, because it resets the coin value to one every frame.

e.g

// initialize the value to zero here

coin = 0;

void Update ()
{}…

This should fix your problem :slight_smile: